clk: stm32: add configuration flags for each of the stm32 drivers

Add two configuration flags to be able to not compile all the time
stm32f and stm32h7 drivers when ARCH_STM32 is set.
That help to save some space on those small platforms.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Acked-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/Kconfig

@@ -244,6 +244,20 @@ config COMMON_CLK_STM32MP157
 	---help---
 	  Support for stm32mp157 SoC family clocks
 
+config COMMON_CLK_STM32F
+	bool "Clock driver for stm32f4 and stm32f7 SoC families"
+	depends on MACH_STM32F429 || MACH_STM32F469 || MACH_STM32F746
+	help
+	---help---
+	  Support for stm32f4 and stm32f7 SoC families clocks
+
+config COMMON_CLK_STM32H7
+	bool "Clock driver for stm32h7 SoC family"
+	depends on MACH_STM32H743
+	help
+	---help---
+	  Support for stm32h7 SoC family clocks
+
 source "drivers/clk/bcm/Kconfig"
 source "drivers/clk/hisilicon/Kconfig"
 source "drivers/clk/imgtec/Kconfig"

drivers/clk/Makefile

@@ -45,8 +45,8 @@ obj-$(CONFIG_COMMON_CLK_SCPI)           += clk-scpi.o
 obj-$(CONFIG_COMMON_CLK_SI5351)		+= clk-si5351.o
 obj-$(CONFIG_COMMON_CLK_SI514)		+= clk-si514.o
 obj-$(CONFIG_COMMON_CLK_SI570)		+= clk-si570.o
-obj-$(CONFIG_ARCH_STM32)		+= clk-stm32f4.o
-obj-$(CONFIG_ARCH_STM32)		+= clk-stm32h7.o
+obj-$(CONFIG_COMMON_CLK_STM32F)		+= clk-stm32f4.o
+obj-$(CONFIG_COMMON_CLK_STM32H7)	+= clk-stm32h7.o
 obj-$(CONFIG_COMMON_CLK_STM32MP157)	+= clk-stm32mp1.o
 obj-$(CONFIG_ARCH_TANGO)		+= clk-tango4.o
 obj-$(CONFIG_CLK_TWL6040)		+= clk-twl6040.o